Megasurcula wynoocheensis media - Encyclopedia of Life

Megasurcula wynoocheensis 001
cc-publicdomain

Wikimedia Commons
Description: English: Megasurcula wynoocheensis (C.S. Weaver, 1912); family Pseudomelatomidae; extinct; Oregon. Date: 1938. Source: Miocene Gastropods and Biostratigraphy of the Kern River Area, California; United States Geological Survey Professional Paper 642 : Megasurcula wynoocheensis pl. 19 # 1, 2. Author: USGS. Other versions: This file has an extracted image: File:Megasurcula wynoocheensis 001 (cropped).jpg..
Megasurcula wynoocheensis 001 (cropped)
cc-publicdomain

Wikimedia Commons
Description: English: Megasurcula wynoocheensis (C.S. Weaver, 1912); family Pseudomelatomidae; extinct; Oregon. Date: 1938. Source: Miocene Gastropods and Biostratigraphy of the Kern River Area, California; United States Geological Survey Professional Paper 642 : Megasurcula wynoocheensis pl. 19 # 1, 2. Author: USGS. Other versions:.